CN102482889A - Arch forming device - Google Patents

Abstract

The invention relates to a floor cove former (10, 40) for forming a corner between lengths of cove material (35) laid along the wall-floor interface of two adjacent walls (31, 32, 61, 62) at different angles. First and second sections (11, 12, 41, 42) are provided, each having an upper section (20, 49) matching the profile of the wall and a lower section (21, 50) defining the shape of the desired arch. The former (10, 40) also includes a floor engaging portion (51) defined by the lower ends of the first and second portions (11, 12, 41, 42) and a wall engaging means (14, 44) defined by the upper ends of the first and second portions, the means being mounted in or around the apex of a corner between the walls (31, 32, 61, 62). The upper and lower portions (20, 21, 49, 50) of each section define a surface (13, 43) on which the floor covering (35) is mounted and the angle between the upper portions of those surfaces is the same as the angle between the walls. In a preferred embodiment, the lower portion (21, 50) is arcuate so that the covering material (35) mounted thereon has a curvilinear profile. In one embodiment, the former (10) is adapted to fit within the internal corner (30), while in another embodiment, the former (40) is adapted to fit around the external corner (60).

Description

arch shaper

The present invention relates to a cove former for forming a cove at a wall-floor junction in a room prior to installation of a floor underlayment, in particular for forming corners at the junction of two walls at different angles Arch shaper.

The present invention is particularly relevant to floors commonly installed in commercial buildings such as hospitals, factories, kitchens and the like. It has sometimes become customary in such buildings to install floor linings which cover not only the ground but also the lower part of the surrounding walls. Capping strips are typically installed on the wall and pressed against the edges of the lining to provide a neat finish. In order to avoid the ingress of dirt and debris from the wall-to-floor junction, especially from corner locations, arches are fitted to the junction before the floor covering is installed. At the corner where two adjacent walls meet the ground, the arch formers are mitered together by beveling the adjoining ends at a 45 degree angle so that the arch formers extend around the corner. Typically, the arch formers are arcuate such that the floor covering around the joint is curved.

Floors installed in those buildings are subject to extreme wear and tear due to the nature of the activities performed in those buildings and the lack of concern for their useful life. For example, heavy containers, trolleys, and hospital beds are likely to be slid or turned by people with little basic skill and/or thoughtlessness on the floor, and even though the floor is especially made of wear-resistant materials, damage is inevitable.

The useful life of said floors depends not only on the activities and personnel performed in those buildings, but also on those responsible for installing the floor coverings. After all, if the lining is installed poorly, its service life is compromised from the start. While there are many floor fitters who are highly skilled and capable of installing floor underlayment to a very high standard, other fitters lack the skill, time or patience required, so installations such as corner arch formers This complex process will be relatively crude.

Floor linings around inside and outside corners are often the first to show the first signs of breakage because the arches are weakest in those areas. In particular, said arch around the sun corner may be damaged due to it being hit by a trolley or hospital bed as mentioned above, but also due to the lack of support for the mitered arch former due to the spatial relationship of the wall. The damage manifests itself by the start of displacement of the mitered joint which may cause the corner to deform and the seam formed in the floor underlayment in and around the corner may break open, opening the door for the ingress of dirt and debris. Channels are provided.

Furthermore, many of these buildings will be governed by strict regulations requiring regular cleaning of floors, especially where public health and sanitation are a concern. While typically the outer surface of the floor covering is waterproof, the underside thereof may not. As such, frequent cleaning with water and strong detergents can exacerbate any small breaks at the seams of the floor underlayment. Further, it is difficult for even the most diligent cleaners to remove the accumulated debris and dirt in the small openings, which can encourage the growth of bacteria.

The main object of the present invention is to provide a former which overcomes the above-mentioned problems related to damage by providing better support for the gusset at those corners.

It is a further object of the present invention to provide a shaper which is quick and easy to install and whose efficacy does not rely unduly on the skill of the fitter or specialized tools such as a miter saw or the like.

It is also an object of the invention to provide a former which produces corner arches so similar each time that all corner arches in a room are identical regardless of the condition of the wall behind them.

According to the invention, a corner arch former is provided, which is used to form corners between sections of arch material laid along the wall-ground joints of two adjacent walls with different angles, so that Said arch formers include:

- a rigid first portion having an upper portion matching the profile of one of the walls and a lower portion defining the desired arch shape, said upper and lower portions defining a first surface joined to a length of arch material;

- a rigid second portion having an upper portion matching the profile of the other wall and a lower portion defining the desired arch shape, said upper and lower portions defining a second surface joined to the other length of arch material;

- the floor engaging part defined by the lower part of the first and second parts; and

- Wall engaging means defined by the upper parts of the first and second parts, said wall engaging means being mounted in or around a corner apex formed between the walls.

Wherein, the first and second surfaces are arranged in such a way that the included angle between them is consistent with the included angle between two walls, and the first and second parts have a common side, and the common side is used to define The apex of the corner arch.

Preferably, said different segments of arch material are flexible. More preferably, the flexible floor covering is laid on the floor and partially upwardly on the wall so as to define a segment of arch material overlying the first and second surfaces of said arch corner former.

Preferably, said first and second upper parts are generally planar, so that when said ground cove corner former is installed on a wall and on the ground, said upper parts lie on a plane which is generally the same as said The surfaces of the walls are parallel and do not project significantly away from said walls. More preferably said first and second generally planar upper portions have a rear surface defining wall engaging means, said rear surface having an adhesive layer or other means capable of securing said floor cove corner former to a wall installation.

Advantageously, said first and second lower parts extend forwardly of said first and second upper parts such that said ground engaging portion rests against the ground in front of said first and second upper parts. The first and second lower portions may be of any shape, however the preferred shape is such that dust and debris will not collect in the finished arch. For this reason, the arch is usually actuated so as to form a seamless transition between the wall and the ground. More preferably, the radius of curvature of the lower portion is in the range of 2cm to 4cm. The ground cove corner formers may be used with elongate cove formers extending along the ground-wall junction between the cove corner formers. In view of this, the radius of curvature of each lower portion is preferably selected to coincide with the radius of curvature of the elongated arch former.

Optionally, the lower part may include two or three planes, wherein the angle between two adjacent planes is 30 degrees. However, it is conceivable that the cleanliness of the arch produced by a lower portion having such a profile may be difficult to maintain. More preferably, the first and second lower parts are defined to have similar shapes, so that the completed arches around the two walls present a continuous shape, and the manufacturing process is relatively simple,

Advantageously, said first and second lower portions have rear surfaces lying in a plane perpendicular to the planar upper portion defining the wall engaging means, and said rear surfaces defining the ground engaging portion. Said first and second lower parts are arcuate and may include, at their free ends, planar parts extending tangentially from the arcuate parts in a plane perpendicular to the planar upper part.

Although there may be walls with different angles in some buildings, in general, the exterior angles between two wall surfaces are likely to be approximately 90 degrees (in the case of a negative angle) and 270 degrees (in the case of a positive angle). corner case). In one embodiment, the angle between the first surface and the second surface is approximately 90 degrees, so that the ground cove corner former can be installed in an inside corner; and in a second embodiment, The included angle between the first surface and the second surface is approximately 270 degrees such that the crown corner shaper can be fitted around the male corner.

Preferably, the first and second parts of the arch corner former are constructed of sheet material having substantially the same thickness of about 1 mm so that when mounted to a wall, the upper part does not move away from the The wall protrudes. If the arch corner former is made of a thicker profile, the first and second parts will protrude a considerable distance from the wall and their outlines will be seen through the floor covering material. Preferably, a capping bead is installed on the wall to hide the edge of the floor covering material and the upper edge of the cove corner former, however, if the material from which the cove corner former is made is too thick, the Lid bead may not work.

However, it is also sometimes desirable to use thicker materials for the arch corner formers to provide increased stiffness and strength. In order to reduce the visibility of the upper profile through the covering material, the thickness of at least one upper portion narrows around the outer periphery of the arch corner former, thereby defining a wedge-shaped region. The size of the tapered region may vary depending on the size and thickness of the arch corner former, and it may also have a linear or arcuate taper. Preferably, said tapered region is formed on said upper first and second surfaces, and, more preferably, said rear surface of said defining wall engaging means is substantially planar. The junction of the upper wedge-shaped area and the non-shaped area may be circular or non-circular.

The arch corner formers can be made from a variety of materials and using a variety of techniques. For example, the arch corner formers may be manufactured from a hard plastic material using techniques such as vacuum forming or other molding processes. Alternatively, the arch corner former may be manufactured from metallic material by a suitable process such as a stamping process. The stiffness of the material is very important as it must provide sufficient support for the gusset in the corner and also must provide sufficient strength so that the corner can withstand impacts such as from a trolley. Beneficially, the selected material must be harder than the floor covering material so that the floor covering material can be rendered onto the selected material and cut to size without damaging the former. In order to adjust the size of the material to fit in an inconspicuous place if necessary, it is preferred that the material is not too hard to be cut by a suitable tool.

According to a further aspect of the present invention, there is provided a method of covering a ground with arch material, the method comprising the steps of:

- mounting a former as described above to a corner of the ground so that the ground engaging portion engages the ground and the wall engaging means rests against the wall; and

Lay the covering material on the floor and extend up a portion around the wall to hide the arch corner former.

Preferably, said method further comprises the step of securing said former in place, more preferably, gluing said former to one of said floor and wall; optionally, said The former may be held in place by screws or similar fastening elements.

Advantageously, the method also includes the step of installing an elongated arch former at the floor-wall junction adjacent said corner arch former. Preferably, the cross-sectional shape of the elongated arch former corresponds to the cross-sectional shape of the lower portion adjoining the elongated arch former.

In order for the invention to be better understood, by way of example only, two specific implementations of the present invention are described in detail with reference to the accompanying drawings, wherein:

Figure 1 shows a front perspective view of an arch corner former according to a first embodiment of the invention;

Figure 2 shows a rear perspective view of the arch corner former shown in Figure 1;

Figure 3 shows a side view of the arch corner former shown in Figures 1 and 2;

Figure 4 shows a perspective view of a female corner defined by walls and ground with the arch corner former shown in Figures 1 to 3 installed;

Figure 5 shows a front perspective view of an arch corner former according to a second embodiment of the invention;

Figure 6 shows a side view of the arch corner former shown in Figure 5;

Figure 7 shows a front perspective view of an arch corner former according to a third embodiment of the invention;

Figure 8 shows a rear perspective view of the arch corner former shown in Figure 7;

Figure 9 shows a side view of the arch corner former shown in Figures 7 and 8;

Figure 10 shows a perspective view of an external corner defined by walls and ground with the arch corner former shown in Figures 7 to 9 installed;

Figure 11 shows a front perspective view of an arch corner former according to a fourth embodiment of the invention;

FIG. 12 shows a side view of the arch corner former shown in FIG. 11 .

Reference is first made to FIGS. 1 to 3 , which show a first embodiment of an arch corner former 10 consisting of two sheets 11 , 12 . Each panel 11 , 12 is made of a thin sheet (typically 1 mm thick) comprising opposed front and rear surfaces 13 , 14 , upper and lower edges 15 , 16 and inner and outer edges 17 , 18 . The upper portion of each sheet is rectangular and planar, while the lower portion is wedge-shaped and curved so as to protrude toward the front of the upper portion. The lower part 21 has a radius of curvature of approximately 4 cm and a total curvature of approximately 90 degrees, so that the rear surface close to the lower edge is in a plane substantially perpendicular to the upper part 20 and defines a base. The wedge shape means that the inner edge 17 extending beside the lower part 21 is bent towards the outer edge 18 so that the lower part 21 narrows in the direction of the lower edge 16 .

The two sheets 11 , 12 are connected to each other (or integrally formed using a molding method) over the entire length of their inner edges 17 , and are arranged in such a way that the angle between the front surface 13 of the upper part 20 is about 90 degrees. The wedge-shaped portion of each lower portion 21 and the forwardly protruding portion of each lower portion 21 have corresponding curvatures so that the two plates 11 , 12 can cooperate with each other.

Referring to FIG. 4 , the former is installed at a corner defined by two adjacent interior walls 31 , 32 and the ground 33 of the building. The surfaces of the interior walls 31 , 32 are separated at an angle of approximately 90 degrees and may already have dry underlayment or plaster attached, while the floor 33 is ready for the laying of a floor underlayment 35 . The shaper 10 emerges in the corner 30 with the rear surface 14 of its upper part 20 resting against the inner walls 31 , 32 and its base 4 resting against the ground 33 . The former 10 is held in place by adhesive, and nails, screws or other quicker means may be used in place of the adhesive or in addition. Elongated arch formers 34 are mounted along the junctions between said interior wall 31 and floor 33 and said interior wall 32 and floor 33 . Each elongated arch former 34 has a radius of curvature equal to that of the forwardly projecting lower portion 21 and has an end face adjoining said outer edge 18 adjacent the lower portion 21 of the blades 11 , 12 . Then, the lining material 35 is laid on the ground 33 and extends upwards to the inner walls 31, 32. The part of the lining material 35 covering the elongated arch former 34 and the arch corner former 10 exhibits a A smooth shape of the same curvature. A cover bead 36 is installed along the wall for concealing the edge of the gusset 35 and the upper edge 15 of the crown corner former 10 .

Referring to Figures 5 and 6, a second embodiment of a cove corner former for internal corners is shown. The arch corner former is very similar to the one discussed above, so like features have been given like reference numerals. The arch corner former differs from the arch corner former discussed above in that the thickness of the upper portion tapers towards the upper edge 15 and the outer edge 18 to define a peripheral tapered region 19 . The peripheral wedge-shaped region 19 tapers and has a linear profile, whereas it may also have a circular or other shaped profile. In these figures, the junction between the wedged and non-wedged regions of the upper portion is defined by an abrupt edge, whereas the junction could be replaced by a rounded interface, thus defining a smooth edge. The width of each wedge-shaped region 19 is approximately one-third of the upper width 20 , 21 of each flap 11 , 12 .

The third embodiment of the arch corner shaper applied to the male corner is shown in Figures 5-8, and similar reference numerals are given to the features shared by the first and second embodiments in this embodiment . Very similar to the arch corner former 10 described in the first embodiment, the arch corner former 40 comprises two sheet bodies 41, 42, said sheet bodies 41, 42 are made of sheet material, and each sheet body comprises Opposed front and rear surfaces 43,44, upper and lower edges 45,46 and inner and outer edges 47,48. Each flap has an upper portion 49 that is generally rectangular in plan and a lower portion 50 that is curved so as to project forwardly of the upper portion 49 . The lower portion 50 has a radius of curvature of about 4 cm and is bent over 90 degrees. The lower portion 50 tapers outwardly so that the inner edge 47 curves away from the outer edge 48 , while the lower edge 46 is significantly longer than the upper edge 45 .

The two plates 41, 42 are connected to each other along the full length of their inner edges 47, and the angle between the front surfaces 43 of the upper part 49 is approximately 270 degrees. Each lower tapered and forwardly projecting portion has a corresponding curvature to form a smooth seam defined by inner edge 47 . The lower edges 46 extend perpendicular to each other, and the rear surface 44 adjoining those edges defines a generally planar base 51 perpendicular to the upper portion 49 of the panels 41, 42, which provides a support for the upper portion 49 of the panels 41, 42 during use. The surface of the shaper 40 described above.

Referring to Figure 8, in use the shaper 40 is mounted around a corner 60 defined by two adjacent interior walls 61, 62 and the floor 33 so that the rear surface 44 of the upper portion 49 rests against the interior Walls 61 , 62 , while its base 51 rests on the ground 33 . Generally, the outer edge 48 extends vertically and the outer edge 48 of the lower portion 50 abuts the end face of the adjacent elongated arch former 34 . Then, the floor covering 35 is laid on the floor 33 and extends partly upwards to the walls 61, 62, partly as shown in FIG. 8 . The lower surface of the floor lining 35 is glued to the front surface 43 of the arch corner former 40 , the elongated former 34 and the walls 61 , 62 . The cover bead 36 extends along the wall 61 for concealing the edge of the gusset 35 and the upper edge 45 of the arch corner former 40 .

Figures 11, 12 show a fourth embodiment of the invention, in which technical features common to the previous embodiments are given the same reference numerals as before. This embodiment is for male corners, which is very similar to the third embodiment, which is also similar to the second embodiment, since this embodiment also includes an outer edge 48 extending around the upper edge 45 and the lower part 49 The wedge-shaped area of 19. Since these features are very similar to those of the second embodiment, there is nothing more to describe here.

Claims (21)

1. ground arch corner former, this ground arch corner former are used for adjacent along the two sides and be between the camber piece material of the different sections of body of wall-ground engagement place of the body of wall of different angles laying and form corner, and said arch former comprises:

-rigidity first, it has top that is complementary with the profile of a body of wall wherein and the bottom that is defined as conceivable arc shape, and said top defines the first surface that is connected with one section camber piece material with said bottom;

-rigidity second portion, it has top that the profile with an other body of wall is complementary and the bottom that is defined as conceivable arc shape, and said top defines and other one section second surface that the camber piece material is connected with said bottom;

-said first and the ground engaging portions that said bottom limited said second portion; And

-said first and the body of wall coupling device that said top limited said second portion; Said body of wall coupling device is installed in the corner summit that is formed between the said body of wall or is installed in around the said corner summit; Wherein, Said first surface and said second surface are so arranged: the angle between them is consistent with the angle between the body of wall of two sides, and said first surface and said second portion have a common edge, and said common edge is used for limiting the summit of said corner arch.

2. ground as claimed in claim 1 arch corner former is characterized in that said arch material segment comprises flexible ground cover material.

3. according to claim 1 or claim 2 ground arch corner former is characterized in that said first bottom and said second bottom are extended towards the front end on said first top and said second top respectively.

As before the described ground of each claim arch corner former, it is characterized in that each first top and said second top are plane usually.

5. ground as claimed in claim 4 arch corner former is characterized in that, said body of wall coupling device is limited on the said back surface that is plane top.

6. ground as claimed in claim 5 arch corner former; It is characterized in that; Said ground engagement device is limited on the back surface of said first bottom and said second bottom, and the surface is tiled in a plane after said, and this plane is perpendicular to the top that is the plane that defines the body of wall coupling device.

As before the described ground of each claim arch corner former, it is characterized in that said bottom is a curve shape.

8. ground as claimed in claim 7 arch corner former is characterized in that the curvature of said first bottom and said second bottom about equally.

9. ground as claimed in claim 8 arch corner former is characterized in that the radius of curvature of said each bottom is in 2 centimetres to 4 centimetres scope.

As before the described ground of each claim arch corner former, it is characterized in that the angle between said first surface and the said second surface is roughly 90 degree.

11., it is characterized in that the angle between said first surface and the said second surface is roughly 270 degree like the described ground of each claim among claim 1-9 arch corner former.

12. as the corner former is encircleed on the described ground of each claim before, it is characterized in that said first surface and said second portion are made up of the sheeting with roughly the same thickness.

13., it is characterized in that the thickness at least one said top narrows down in the outer peripheral edges of said arch corner former, thereby limit wedge-like portion like the described ground of each claim among claim 1-11 arch corner former.

14. as the corner former is encircleed on the described ground of each claim before, it is characterized in that said first and said second portion are molded.

15. as the corner former is encircleed on the described ground of each claim before, it is characterized in that said former is processed by plastic material.

16., it is characterized in that said former is processed by metal material like the described ground of each claim among claim 1-13 arch corner former.

17., be able to explanation with reference to Figure of description and in Figure of description like claim 1 and the described ground of preceding text arch corner former.

18. a ground assembly, it comprises

-like the described ground of any claim in front arch corner former, said former is installed on body of wall-junction, ground that the two sides is the body of wall of different angles; And

-flexible ground cover material, it is used to cover the floor adjacent with body of wall, and extends on the body of wall of part, and said ground cover material also is used to cover the said first surface and the said second surface of said arch corner former.

19. the method with camber piece material covering ground, it comprises the steps:

-will be installed to the corner on ground like any described former of claim in front, so that said ground engaging portions and ground engagement, the body of wall coupling device then leans on body of wall mutually; And

-with cladding material lay on the ground and part extend to around on the body of wall, to hide said arch corner former.

20. the method on covering as claimed in claim 19 ground is characterized in that, this method also comprises said former is adhered on said ground or the body of wall, perhaps is adhered to the step on said ground and the body of wall.

21. method like claim 19 or 20 described covering ground; It is characterized in that; This method also is included in the ground contiguous with said corner-body of wall joint installation and roughly is longilineal arch former, and said elongated shape arch former has and said first bottom and one of them end face that adjoins mutually of said second bottom.

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